Sediment plug and valve



B. S. MAHAFFEY SEDIMENT PLUG AND VALVE Filed July 10. 1922 Patented Nov.3, ldilil.

UNITED STATES BENJAMIN S. MAHAFFEY, OF CHCAGO, ILLINOIS.

SEDMENT PLUG AND VALVE.

Application led July 1G, 1922. Serial No. 573,853.

To all whom 'it may concern.'

Be it known that l, BENJAMIN S. MA- i-IAFFEY, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in SedimentPlugs and Valves, and l do hereby declare the following to be a full,clear, and exact description oll the invention, such as will enableothers skilled inthe art to which it appertains to make and use thesame.

This invention relates to improvements in combined sediment plugs andvalves, especially for automobile crank cases or 'the like, and has forone of its principal objects the provision of a plug which will closethe drain opening commonly provided on automobile crank pans or crankcases, and which will at the same time operate as a continuously acting,sediment collecting means and provided with a discharging device whichcan be operated `when desired.

One oit the important objects of this invention is the provision of acombined drain plug and sediment valve for automobiles which can beoperated to drain the sediment which collects in the oil in the crankcase, without necessitating the removal oi' the original plug which isalways accompanied by expenditure of considerable trouble andinconvenience experienced in crawling under the machine.

A further important object of this invention is the provision of acombined sediment plug and valve for use with the crank cases ofautomobiles which will automatically act to collect, by gravity, anysediment occurring in the oil of the crank case and which in operationwill promptly and thoroughly drain all suoli sediment which has beencollected during the use ot the machine iior the period prior to theopening of the valve.

Still another important object of this invention is the provision oit' acombined sediment plug and valve for automobile crank pans or the likewhich can be operated from the side ot the motor without theinconvenience of getting under the machine which is ordinarily necessaryin the removal of such drain plugs and the changing of the oil in thecrank case of the automobile.

Other and further important objects of the invention will be apparentfrom the disclosures inthe accompanying drawings and followingspecilication,

The invention, in a preferred form, isv

Als shown in the drawings, the reference numeral 1() indicates the bodyot the plug which is preferably hexagonal in shapebut which, if desired,may be made ot any other convenient shape. is shown in the iigures, theplug is hollow and this provides a chamber for the collection of thesediment which is ordinarily distributed over the entire bottom ot theusual automobile crank case. An upwardly extending nipple 12, providedwith screw threads, is integral with the body 10, and the height of thisnipple 12 is approximately the thickness o1 the ordinary automobilecrank pan so that the edges thereof will be Hush with the bottom of thepan when the plug` is mounted in position, thereby providing for a readydrainage of all sediment into the plug chamber. The plug may be composedol. any suitable material, as iron or the like.

Mounted in an opening 9 in the lower portion of the plug by means ofscrew threads 14: is a valve member 16 which extends therethrough and.is parallel and in close proximity to the bottom 2a of the plug 10.rl`he inner end 18 of this valve member 16 is tapered, as shown in thedrawings, and is adapted to cooperate with a circular opening 20 drilledor otherwise provided in' the side oli the plug 10. The inner face' ofthe circular opening 20 is tapered to correspond with the tapered end 18in order that a very close lit may be attained between the valve member16 and the opening 2O so that there will be no possibility of leakage.

The tapered faces may be reground, itt desii-ed or necessary. ln orderto effectively prevent the eolleetion of any sediment or other foreignmatter between the 'faee ot the valve and the opening i2() the ot theopening maj; be made sharpt at shown in rhe ontivaidbv extending end oi'the valve member l5 is tlattened as shown at in oie-der to provide forthe ready a mation of a Wrench or the lik thereto Mirthe/r;

there is provided in this outnfarfgllj; extending end 22 a slot in.vtieh there n inserted the edge oit' a shown at the outer bei 16 isen'ar'ren in threa with screw with correspond i L1 i, opening` iluneieiluv is to etain position. are loe: near toni o the ph y be no`nossil Llity ol ing on the bottoni oit insuring that the i will beAeileetively f i6 is opened. This ,Y

account oi? the increased head of depth 'ot the plug sprii provided thetime e nln there/vvthe neeessitj; of ,er nfl the er t i the oil ohmengyad the ser which nsnal v entire bottom of 'the eredi ea there isnecessarily stiri .'l up and into the bean-ings7 is hereby positively iai i aware that rwny changes nay be i num n et' L,ti-notion variedthrougnont a Wide range Without departing 'trom the principles oit thisinvention and i 'therefore do not purpose limiti1 the patent grantedhereon otherwise than necessitated by the prior art.

l claim as my invention:

l. A Combined sediment plug and valve comprising a plug easing having asediment eoileeting chamber therein, opposite sides of the plug havingopenings therein7 one et said openings having a seat and the otheropening having a thread, a threaded valve member in the latter openingand having one end adapted to engage the seat vand the other end adaptedfor applieationof a tool for turning the same, the'top of the valvevmem` ber having groove therein, and'aspring fixed in the groove andadapted at its outer end to engage an inner face of the plugto 'preventaccidental removal of the valve member.

2. A combined sediment plug Aand valve for automobile crank casesincluding a hollov7 sediment plug, means at the'topthereot adapted toits attachment to `an automobile crank ease and drainage meanssubstantially tinsh With the bottom ot the sediment chamber comprisingtivo circular openings diametrieally opposite eaeh other one of saidopenings being provided with 'screw` threads and the other o1 saidopenings having a ground seat, a valve member screw-threadedl),v mountedin one of said openings and adapted te cooperate-with the ground seatoit the vother opening and a spring on the valve member to engage theinner face of the plug to prevent displacement of the valve member.

3. A Vcombined sedimentplug and yvalve Comprising a plug easing having asediment collecting chamber therein, opposite sides of 'the plug casinghaving openings therein, a valve member adjustable in one opening andadapted to engage the seat at the inner end of the other opening, saidvalvemember having a longitudinal peripheral groove therein, and meansseated in the groove, and seenred by one end and adapted `to engage theinner iaoe ot the plug to prevent aceidental removal et the valvemember.

e. A combined sediment plug and valve comprising a plug easing having asediment collecting Chamber therein and an externally threadedconnection extension 'tor attachment to :in automobile crank easeopposite titles oit the pi ik.; easing ha Jg vvopenings thereinsubstantially flush witl the bottom of the casing chamber7 one of saidopenings having a seat and the other said opening having e taperedthread, e tapered threaded valve member in the latter opening and havingone end adapted to engage the seat and the other end adapted forapplication of ai tool for turning the same, the top of the valve memberhaving a groove therein, and

a spring lixed in the groove and adapted et its outer end to engage theinner face of the plug to prevent accidental removal of the 10 valvemember.

In testimony whereof I affix my signature.

BENJAMIN S. MAI-IAFFEY.

